2021-060: A General Platform For the Recovery of Transition Metal Catalysts


Transition metal catalysts, through their ability to lend or borrow electrons from other molecules, are essential to facilitate reactions in both organic and synthetic chemistry. These catalysts often contain some of the most expensive and scarce elements on earth (e.g., palladium, platinum, ruthenium, and rhodium) which heavily incentives recovering these elements after the reaction.

This invention controls the solubility properties of the transition metal catalysts, allowing the recovery of the catalyst complex through simple precipitation and filtration. Current catalyst recovery methods are reaction specific, and typically require multiple treatments with low yields. This platform is universal and can be applied to virtually all known catalytic transformations.

Reference Number: 2021-060

Market Applications:

  • Pharmaceutical manufacturing
  • Fine chemical manufacturers

Features, Benefits, & Advantages:

  • Universally applicable to all transition metal catalysts
  • Reduces impurities introduced by traditional catalyst recovery methods
  • Reduces waste of expensive catalysts

Intellectual Property:

  • US Provisional Patent 63/304,119 was filed on Jan. 28, 2022.


  • Guigen Li, Department of Chemistry & Biochemistry, Texas Tech University
  • Michael Findlater, Department of Chemistry & Biochemistry, Texas Tech University

Key Words:

  • Recyclable Homogeneous Catalysts; Precious Metal Recovery; Metal Scavenger

Contact Information

Name: Jennifer C Souter

Email: jesouter@ttu.edu

Phone: 806-834-7507